【单选题】The teachers ________ on the blackboard with chalk in the future.
【简答题】什么是巴洛克艺术,巴洛克艺术的特点?当时著名的雕刻家及其作品和艺术风格。
【单选题】Don’t worry about your future. As long as you try your best, a great future ________ wait for you on your way.
【简答题】已知 U S = 3V , I S = 2A ,求 U AB ( )V ; I( )A 。